As usual, I swing on by one in a blue moon to present a topic completely different than the established topic at hand.
This thing
Should it be tournament legal?
Reasons to be banned
Extra ZL button
L and R are like a gamecube controller with the springs removed
Requires you to change controller settings on a custom name for every console you use it on.
Reasons to allow:
Left stick is in that stupid playstation layout and is harder to manipulate than a GCN stick.
Wireless so maybe some delay?
It's not a controller mod, it's an alternate controller that brawl already knows how to handle.
Not allowing it would be like not allowing players to chose between gamepad, arcade stick and hitbox in most fighting games.